Effective October 1, 2015, pursuant to Public Act 15-4 entitled: An Act Concerning Excessive Use of Force (Section 6), No law enforcement unit, as defined in Section 7-294a, Connecticut General Statutes, shall hire any person as a police officer who was previously employed as a police officer by such unit or in any other jurisdiction and who ( 1) was dismissed for malfeasance or other serious misconduct calling into question such person's fitness to serve-as a police officer or (2) resigned or retired from such officer's position while under investigation for such malfeasance or serious misconduct.